Adding Integers with DIFFERENT SIGNS (positive + negative or negative + positive). Different Signs-Find the Difference Subtract the numbers and keep the sign of the number with the MOST chips (black = positive, red = negative) Example 1: -8 + 2 = -6 Example 2: -4 + 7 = 3. î î î.ifferent Signs-Find the Difference Subtract the numbers and keep the sign of the number with the MOST chips (black = positive, red = negative) Example 1: -8 + 2 = -6 Example 2: -4 + 7 = 3.
* A lubricant. Zinc Stearate is a zinc soap known for repelling water, and is used in the cosmetics and personal care industries as a lubricant. It is an insoluble salt made of commercial stearic acid, a mild fatty acid used as an emollient and lubricant, and is often combined with zinc oxide.
Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning).